Chapter One
On the Verge of Defeat
June – September 1950
Following the defeat of the Japanese and the end of the Second World War, the Korean peninsula had been occupied in the North by the Soviet Union and in the South by the United States. The two halves of the country were partitioned at the 38th Parallel. In 1948 the Republic of Korea was established in the South, ruled by Syngman Rhee whose declared objective was the reunification of Korea as a non-communist state. A month later the Democratic Peoples Republic of Korea was established in the North, led by Kim II Sung. Elections should have been held to reunite the country, but never took place. By 1949 American combat forces had withdrawn from Korea, but left a military advisor group to assist the ROK army. The Soviet Union however, took an active role in governing North Korea and in early 1950 supplied weapons and several thousand soldiers to train the North Korean Army. Armed clashes were common along the 38th Parallel, but in 1950 US observers did not anticipate an invasion of the South. In January 1950 US Secretary of State Dean Acheson announced an American defensive strategy in the Far East that excluded both Korea and the Nationalist Chinese island of Formosa. It sent a clear signal to the DPRK that Syngman Rhee was on his own.
Colonel Paik Sun Yup was fast asleep when the telephone rang. His breathless G-3 was at the other end: ‘The North Koreans have invaded! They're attacking all along the parallel! The situation in Kaesong is chaotic, and I'm afraid the city already may have fallen.’ It was 0700 hours on Sunday, 25 June 1950. Colonel Paik was the commander of the 1st Republic of Korea (ROK) Division, protector of Seoul, the capital of South Korea. He was twenty-nine years old. He was also away from his 10,000-man division, on a senior officer training course at the Infantry School in Seoul.
By the time Paik rejoined his division they were in contact with the 1st North Korean Division supported by tanks from the 105th Armoured Brigade. The 1st ROK Division was at the western end of the four divisions tasked with defending the 240 mile long imaginary line which was known as the 38th Parallel and formed the frontier between the two countries. Their section of the line was fifty-six miles long and impossible to defend, so Paik reduced it to nineteen miles by establishing his defences along the Imjin River. However, this meant that Kaesong was left open to the invaders and it fell within hours, with the 12th Regiment falling back in disarray.
The 13th Regiment at Munsan was also involved in a pitched battle and the third regiment of the division, the 11th was called up from its reserve position. However, 50 per cent of its personnel were on leave and it would take time for the men to rejoin their unit.
The 7th ROK Division was established to the east of the 1st ROK Division, but communications had broken down and their present situation was unknown.
At the time of the invasion, South Korea possessed eight infantry divisions and four of them – 1st, 6th, 7th and 8th – were in position along the 38th Parallel. They were armed with American M1 rifles, 0.30-calibre carbines, 60mm and 81mm mortars, 2.36-inch rocket launchers and the M3 105mm howitzers. They had no tanks, no medium artillery and no fighter aircraft or bombers.
The North Korean Army that attacked the South consisted of ten infantry divisions, eight of them at full strength with 11,000 men each plus one armoured brigade equipped with Russian T-34 tanks mounting an 85mm gun, an armoured regiment and two independent regiments totalling 135,000 men. They were equipped with 150 tanks, over 600 artillery pieces and 196 aircraft, including forty fighters and seventy bombers. Of the ten divisions, three were former Chinese Communist 4th Field Army divisions, 38,000 ethnic Koreans who had fought on the communist side during the Chinese civil war, so they were combat-hardened and efficient. The North Koreans had spent over 13.8 million rubles to purchase Soviet weaponry including 76mm and 122mm howitzers, 45mm anti-aircraft guns and 82mm and 120mm mortars. The invasion force comprised two Corps, both commanded by Koreans who had fought for Mao Zedung in the Chinese civil war. The commanders of the 5th, 6th and 7th Divisions were all veterans of the Chinese 4th Field Army and their men all brought their weapons with them when they crossed the Yalu River back into North Korea.
During the afternoon of 25 June, North Korean aircraft attacked South Korean and United States Air Force aircraft and facilities at Seoul airfield and Kimpo air base, just south of Seoul. They left a C-54 transport aircraft burning at Kimpo and one of its crew became the first American to be wounded in the Korean War.
The next day US Far East Air Force fighters based in Japan flew top cover while ships began to evacuate American citizens from Inchon, a seaport on the Yellow Sea, twenty miles west of Seoul. On the following day, 27 June, the UN Defensive Campaign formally commenced when Fifth Air Force fighters destroyed three North Korean Yak fighters, the first aerial victories of the war. The UN Defensive Campaign was the first of ten campaigns that would be fought the length and breadth of the Korean Peninsula over the next three years and the participants would be awarded medals accordingly.
As the North Koreans began to push the ROK forces southwards and Seoul fell to the invaders, the United Nations voted to assist the Republic of Korea. The United States would take the lead and President Harry S. Truman ordered US air and naval forces to help counter the invasion. Within days advance elements of the US 24th Infantry Division were on their way from Japan to the port of Pusan in the south-east corner of the peninsula. T...